County annual report · FIPS 47155
2022 Sevier County, TN Power Outage Report
In 2022, customers in Sevier County, TN went without power for an average of 25.8 hours, a total of 1.8M customer-hours (Tennessee average 9.2 hours). That ranks 2nd worst of 84 Tennessee counties and 233rd of 2,976 nationally.
Compared with TN, the US and 2021
Coverage line is EAGLE-I's share of Tennessee customers tracked each year.
Biggest outages in Sevier County, 2022
The 10 outage episodes with the most customers out at once. Times are UTC.
| # | Started (UTC) | Ended (UTC) | Duration | Peak out | Customer-hours |
|---|---|---|---|---|---|
| 1 | January 3, 2022 07:15 | January 11, 2022 01:15 | 7d 18h | 29,229 | 1.4M |
| 2 | December 22, 2022 20:30 | December 25, 2022 08:00 | 2d 11h | 15,336 | 80K |
| 3 | May 6, 2022 15:30 | May 8, 2022 16:00 | 2d | 6,673 | 36K |
| 4 | March 30, 2022 14:00 | April 2, 2022 23:45 | 3d 9h | 4,333 | 76K |
| 5 | November 22, 2022 08:45 | November 22, 2022 11:00 | 2h 15m | 3,276 | 3,521 |
| 6 | July 10, 2022 07:30 | July 10, 2022 13:00 | 5h 30m | 3,247 | 4,758 |
| 7 | April 19, 2022 02:00 | April 19, 2022 04:00 | 2h | 2,997 | 5,242 |
| 8 | February 17, 2022 12:00 | February 19, 2022 00:00 | 1d 12h | 2,696 | 11K |
| 9 | February 4, 2022 11:30 | February 4, 2022 23:30 | 12h | 2,138 | 1,694 |
| 10 | December 29, 2022 22:00 | December 30, 2022 03:30 | 5h 30m | 2,098 | 8,386 |
Outage episodes by size in 2022: 149 reached 100+ customers, 29 reached 1,000+ customers, 2 reached 10,000+ customers.
Utility reliability filed with the EIA
SAIDI (average outage time per customer) and SAIFI (average interruptions per customer) that utilities serving Sevier County reported on EIA Form 861 for 2022, or their most recent earlier filing. Utility-wide figures, not county-specific.
| Utility | EIA year | SAIDI | SAIFI | SAIDI excl. major events | SAIFI excl. major events |
|---|---|---|---|---|---|
| Knoxville Utilities Board | 2022 | 4.2 hrs | 2.19 | 1.7 hrs | 1.31 |
| Appalachian Electric Coop | 2022 | 7.0 hrs | 4.70 | 4.2 hrs | 2.93 |
| Sevier County Electric System | 2022 | 30.9 hrs | 4.96 | 7.6 hrs | 2.13 |
| City of Newport - (TN) | - | - | - | - | - |
About this data
- Outage figures come from DOE/ORNL EAGLE-I, which records customers out by county every 15 minutes. EAGLE-I tracked about 75% of Tennessee's customers in 2022; utilities it does not see are not counted.
- Hours per customer = outage customer-minutes ÷ 71,320 customers (ORNL modeled county customer count), including major storm days. It is comparable across counties but is not the SAIDI a utility files.
- An outage event is a continuous stretch with customers out; counts at 100, 1,000 and 10,000+ use its peak.
- Years loaded: 2015–2025. Sevier County has data for 2015–2025.
Cite this report
MassOutage (massoutage.com), Sevier County, TN annual power outage report, 2022, data as of Oct 3, 2026 02:41 UTC, sources: DOE EAGLE-I (https://eagle-i.doe.gov/); EAGLE-I modeled customer counts (MCC) (https://figshare.com/); EIA Form 861 (utility reliability) (https://www.eia.gov/electricity/data/eia861/). https://massoutage.com/reports/2022/tennessee/sevier-county